I have just spent the last 4 hours installing my new voip telephone system with virtual pbx - which is all great and works brilliant.
However, no that this has been installed, none of my pc's can access the windows 2003 small business server and none of the pc's can see any of the othr pc's on the windows network.
As soon as I unplug the phones, hey presto, communication resumes.
When this all happened I received a dns error on the server - non of which made sense.
Im hoping someone can help!